...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7262252 | Nonlinear optical materials comprising fluorine-containing polymer There is provided a fluorine-containing resin composition which is used for nonlinear optical material and comprises (I) a fluorine-containing prepolymer and (II) an organic compound exhibiting a second- or higher-order nonlinear optical effect, in which the fluorin... | 08/28/2007 |
| 7101926 | Free-flowing polymer composition The present invention relates to substantially free-flowing polymer particles. The polymer particles are those which have a one millimeter penetration temperature of less than about 75° C. as determined by thermal mechanical analysis or an unconfined yield strength... | 09/05/2006 |
| 6887940 | Compatibilizing agent for engineering thermoplastic/polyolefin blend A compatible blend of an engineering thermoplastic such as a polyamide and an olefin polymer material is prepared by (1) making an oxidized olefin polymer material containing carboxylic acid groups or derivatives thereof, (2) extruding a mixture of (a) the oxidized ... | 05/03/2005 |
| 6852804 | Star block copolymers and related synthetic methods Block copolymers having a polyisobutylene segment and a polycycloaliphatic diene polymer segment are presented. Star block copolymers with 2 to 16 block copolymer arms, wherein each of the arms has a polyisobutylene segment and a polycycloaliphatic diene polymer seg... | 02/08/2005 |
| 6844390 | Modified alkyd compositions comprising polyol latex compositions and processes of making them The present invention relates to modified alkyd polymers and compositions thereof, in which the alkyd polymers are modified with polyol-containing latex compositions and/or diol-containing latex compositions. The invention further relates to compositions prepared fr... | 01/18/2005 |
| 6706391 | Anisotropically electroconductive film An anisotropically electroconductive film, which has a high reliability in its capacity for conducting electricity and also a good adhesion under such an adhesive condition that the film is heated at a temperature of 130° C. or less for a short period of time, has ... | 03/16/2004 |
| 6632854 | Production of polypropylene having improved properties A process for producing polypropylene having increased melt strength, the process comprising irradiating polypropylene with an electron beam having an energy of at least 5 MeV and with a radiation dose of from 5 to 100 kGray in the presence of a grafting ... | 10/14/2003 |
| 6482897 | Process for producing ABS moulding compositions having a high rubber content A process for producing impact-resistant moulding compositions, which is characterised in that a monomer mixture comprising 90 to 20 parts by weight of an aromatic monoalkenyl compound, 10 to 50 parts by weight of an ethylenically unsaturated nitrile, 0 to 30 parts... | 11/19/2002 |
| 6444722 | Making polyolefin graft copolymers with low molecular weight side chains using a polymeric peroxide as an initiator Graft copolymers with low molecular weight side chains are prepared by (1) irradiating a propylene polymer material in the absence of oxygen, (2) adding a controlled amount of oxygen to the irradiated polymer material so that the polymer is exposed to an ... | 09/03/2002 |
| 6429256 | Aqueous coating composition and a polyol for such a composition Aqueous coating composition, for example for use as a clear or pigmented top coat or a primer, comprising: a) a polyol or a mixture of polyols having at least two hydroxy groups per molecule and: i a content C of carboxylate- and/or carboxylic acid-functional ... | 08/06/2002 |
| 6417272 | Process for the preparation of block copolymers A process is disclosed for manufacturing coupled radial block copolymers of the S--B--Li type having improved optical properties, which process utilizes coupling agents having from about 3 to about 7 epoxy groups per mole.... | 07/09/2002 |
| 6380317 | Production of acetal derivatized hydroxyl aromatic polymers and their use in radiation sensitive formulations The present invention provides a process for generating mixed acetal polymers by reacting a hydroxyl containing polymer or monomer with vinyl ether and alcohol in the presence of an acid catalyst. The process of this invention provides a new class of poly... | 04/30/2002 |
| 6369163 | Pyrrolidinone-containing compatibilizers There is described the use of monomeric and polymeric N-pyrrolidinone-containing compounds as compatibilizers for plastic compositions, a process for improving the compatibility of plastic compositions, the improved plastic compositions obtainable thereby... | 04/09/2002 |
| 6268467 | Hydroxy or amino terminated hydrophilic polymers The present invention generally relates to certain hydrophilic polymers. These polymers undergo negligible shrinkage when polymerized and are highly hydrophilic, rendering them useful in a variety of applications.... | 07/31/2001 |
| 6159653 | Production of acetal derivatized hydroxyl aromatic polymers and their use in radiation sensitive formulations The present invention provides a process for generating mixed acetal polymers by reacting a hydroxyl containing polymer or monomer with vinyl ether and alcohol in the presence of an acid catalyst. The process of this invention provides a new class of poly... | 12/12/2000 |
| 6136926 | Cross-linkable, olefinic polymers and methods for their synthesis Cross-linkable, olefinic polymers synthesized from mixtures of olefinic polymers and ethylenically unsaturated organosilane compounds, which can be grafted, by a 2-step method using thermally decomposing free radical-forming agents by heating the mixtures... | 10/24/2000 |
| 6031051 | Liquid crystal displays containing spacers and methods for producing the spacer Methods for preparing uniformly sized polymer particles comprised of multi-functional monomers such as poly(1,4-butanediol diacrylate) and poly(1,6-hexanediol diacrylate) are disclosed. The particles are of a size, uniformity, and contain physical charact... | 02/29/2000 |
| 6028147 | Block copolymer, process for producing the same and resin composition of the same Herein disclosed are a block copolymer having an isobutylene-based polymer block and a vinylic aromatic hydrocarbon-based polymer block and containing a styrenic unit having a halogenated saturated aliphatic hydrocarbon group on the benzene ring at 0.01 t... | 02/22/2000 |
| 5837776 | Process for producing water soluble anionic dispersion polymers Aqueous dispersions of water soluble nonionic and anionically charged vinyl and allyl addition polymers can be obtained by polymerizing in the presence of an anionically charged water soluble polymer stabilizer in a saturated salt solution. Methods for th... | 11/17/1998 |
| 5811474 | Low fogging rubbery polymer There is a need for polymers which offer increased heat resistance, ultraviolet light resistance, and low fogging characteristics for utilization in automotive interiors. It is particularly critical for polymers which are utilized in making skin compounds... | 09/22/1998 |
| 5767173 | Low fogging rubbery polymer There is a need for polymers which offer increased heat resistance, ultraviolet light resistance, and low fogging characteristics for utilization in automotive interiors. It is particularly critical for polymers which are utilized in making skin compounds... | 06/16/1998 |
| 5744560 | Metal accelerated polymerization processes A free radical polymerization process for the preparation of a polymer comprising heating a mixture of a free radical initiator, a stable free radical agent, a metal catalyst, or a metal stable free radical complex catalyst, and at least one polymerizable... | 04/28/1998 |
| 5605970 | Synthesis of high molecular weight anionic dispersion polymers A process for synthesizing high molecular weight anionic dispersion polymer is disclosed, the process comprising providing a mixture of water, acrylic acid and a stabilizer; cooling the mixture to a temperature of less than 35° C.; lowering the pH of the... | 02/25/1997 |
| 5536789 | Propylene polymers having a broad molecular weight ratio Q Propylene polymers have a molecular weight ratio Q (Mw /Mn) of from 6 to 30 and are obtainable by Ziegler-Natta polymerization in the presence of hydrogen as molecular weight regulator and are particularly suitable for the production... | 07/16/1996 |
| 5496897 | Process for preparing uniformly sized, fine particles of polymer Uniformly sized, fine particles of a polymer are produced by: (1) mixing (B) a nonionic-organic compound being liquid at room temperature, having a solubility in water at 25° C. of 0.01 wt. % or larger and being compatible with (A) an oil-soluble, ethylenical... | 03/05/1996 |
| 5428110 | Process for producing propylene copolymer A process for producing a copolymer of propylene and other -olefins in the presence of a catalyst comprising a titanium-containing solid catalyst component and an organoaluminum compound is disclosed. The process comprises (1) a first step in which... | 06/27/1995 |
| 5292814 | Process for the preparation of monodispersed polymer beads The invention concerns a process for the preparation of monodispersed polymer beads, wherein in a first stage a seed polymer is prepared in an organic solvent and in the presence of an R--X compound, separated and in a second stage an emulsion polymerizat... | 03/08/1994 |
| 5254630 | Process for the production of a vinyl chloride-butyl acrylate graft copolymer for processing by injection molding A method for manufacturing vinyl chloride-butyl acrylate graft copolymers for processing by injection molding is provided wherein vinyl chloride is grafted onto crosslinked polybutyl acrylate in the presence of chain regulators. The graft copolymers exhib... | 10/19/1993 |
| 5198501 | In-situ polymerized blends of vinyl acetate/ethylene copolymar and poly(vinyl chloride) A poly(vinyl chloride) product is provided containing as a permanent plasticizer, a copolymer of vinyl acetate and ethylene which is copolymerized in the presence of porous particles of the PVC. The copolymerization is carried out in either suspension or ... | 03/30/1993 |
| 5087672 | Fluorine-containing acrylate and methacrylate side-chain liquid crystal monomers and polymers The present invention relates to novel fluorinated acrylate and methacrylate ester monomers and homopolymers and copolymers thereof. In another aspect, it relates to a process for preparing monomers of the invention. Homopolymers and copolymers of the inv... | 02/11/1992 |
| 5049621 | Process for producing butadiene oligomer adducts The present invention relates to a process for producing butadiene oligomer adducts of (A) a butadiene oligomer or co-oligomer prepared from a monomer, selected from conjugated diolefins and vinyl-substituted aromatic compounds, and butadiene with (B) an ... | 09/17/1991 |
| 4943617 | Liquid crystalline copolymer A liquid crystalline copolymer contains a comonomer to which a radical ##STR1## is bonded, where X is a chemical bond, O or NR1, Y is a chemical bond or --CO--, R1 is hydrogen or C1 -C4 -alkyl and A is a li... | 07/24/1990 |
| 4837272 | Cross-linking of olefin polymers A process for the cross-linking of olefin-polymers such as polyethylene which comprises reacting the polymer with a free radical generator to form a polymer having free radicals and reacting the polymer having free radicals with a tetrafunctional organo z... | 06/06/1989 |
| 4766179 | Bismaleimide compositions The invention relates to a composition comprising (A) 64-4 parts by wt. of a bismaleimide compound, or an isomaleimide isomer thereof, a maleimide-amide compound or an isomaleimide isomer thereof and maleic anhydride compound, (B) 7-77 parts by wt. of one or m... | 08/23/1988 |
| 4739015 | Process for producing propylene block copolymer A process for producing a propylene block copolymer in the presence of a highly stereospecific olefin polymerization catalyst which comprises producing a crystalline polymer or copolymer of propylene in a first stage and random-copolymerizing propylene an... | 04/19/1988 |
| 4710539 | Heat activatable adhesive or sealant compositions A heat activatable adhesive or sealant organic resin composition comprising (1) a liquid, ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH3, R1 is an organic moiety and n is at ... | 12/01/1987 |
| 4624992 | Process for grafting unsaturated monomers on olefinic polymers Ethylenically unsaturated monomers are grafted on homo- and olefinic co-polymers by means of a radicalic reaction, operating at between 60° C. and 160° C., in a solution of the polymer in a solving medium consisting of, or predominantly comprising a mix... | 11/25/1986 |
| 4611028 | Polymeric dispersion stabilizer and stable dispersions prepared therefrom Copolymers adapted for use as stabilizers in dispersions and stable dispersions, including crosslinked dispersions containing microgel particles, prepared therefrom. Stabilizer bears pendent ethylenic unsaturation capable of reacting with monomers employe... | 09/09/1986 |
| 4525426 | Ultraviolet light absorbing agents, method for making, compositions, and articles containing same A method is provided for making certain methoxy-substituted silyl benzophenones useful as ultraviolet light absorbing agents for silicone hardcoat formulations. The methoxy-substituted benzophenones have been found to more readily equilibrate into silicon... | 06/25/1985 |
| 4480075 | Block copolymers of Ziegler-Natta polymerized and anionically polymerized monomers Block copolymers are prepared by using two successive and different catalytic processes, a Ziegler-Natta type polymerization followed by a conventional anionic polymerization.... | 10/30/1984 |